Saturday, February 20, 2016

What happens when you use a tea bag a second time?

I'm just posting this cause I'd always wondered what the answer was, but never cared enough to look it up. Thanks to /r/askscience, I now know the answer!

The numbers vary somewhat, but if you make 1 cup of tea with a tea bag you get most of the total extractable caffeine (around 70% or so).  If you make a second cup of tea you get close to that last 1/3  that is left. Here is a summary table.

We can thank Monique Hicks et al., at Auburn for this paper (there are other cool measurements in this as well)!

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